Describe how arteries, capillaries and veins are structurally different
What will be an ideal response?
Arterial walls are thicker, heavier, stronger, and stretchy enough to handle expansion and recoil as blood under high pressure is transported. Veins have thinner walls; these vessels operate under low or even negative pressure. The lumens of veins are larger than those of corresponding arteries. Veins also have valves to prevent the backflow of blood. Capillaries are composed of only the tunica intima and are only one cell layer thick.
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The left ventricle has a thicker wall than the right ventricle because the left ventricle has to pump blood against a higher pressure.
Answer the following statement true (T) or false (F)
The time of day most hazardous for heart attacks is ________.
A) morning B) noontime C) evening D) during sleep
What is the most abundant protein in plasma?
A. Insulin B. Creatine C. Bilirubin D. Albumin E. Creatinine
Within each hemisphere, deep to the floor of the lateral ventricle, you will find the
A) anterior commissures. B) basal nuclei. C) motor association areas. D) visual cortex. E) auditory cortex.